What can be a reason for QCI5 Acc dip?

RAN
1

Hi Experts.

What can be a reason for QCI5 Acc dip?
Vendor is Ericsson.

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2

What do stats say?
Which failure rate increased?

3

Is this one cell, one site, one cluster, one city or one network?

4

This is in random sites from particular date.

Any specific counter suggested to check?

5

I would say you have specific faulty UEs that cannot register on IMS, most likely after a software upgrade.
Put some trace on such a cell and you will understand what it is.

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